English
عربى
Español
What is PET Preform Shaped Bottle Mould？
Sep 23,2022
PET preforms are hollow tubes that are filled with a liquid and blown into specific shapes to produce bottles and containers. These hollow tubes have different volumes depending on the type of product to be manufactured. Typically, the difference between the volume of the preform and the finished bottle or container is only a few percent. This reduces packaging costs and contributes to environmental initiatives.
PET plastic bottles are produced using a process known as stretch blow molding. Small pellets of plastic resin are fed into an extruder and melted, forming the plastic into plastic tubes (preforms). Air is then injected into the preforms to give them the desired shape.
PET preform shaped bottle moulds are typically installed on a hot runner system. The insulation plates of a PET preform mould should be 12 mm thick to withstand high temperatures and pressure. The preform mould should also have sufficient air venting to prevent local overheating. The slot depth of the PET preform mould should not exceed 0.03 mm, as it may invite flash.
PET preform shaped bottle moulds are available in many different types of configurations. They may be gateless, auto eject or have a mirror finish. They can be designed to meet the specific specifications of a single or multi-cavity PET bottle.
